../ dmsp_15_ephemeris_20131203.txt 22-Jun-2023 00:23 109378 dmsp_16_ephemeris_20131203.txt 22-Jun-2023 00:23 109313 dmsp_17_ephemeris_20131203.txt 22-Jun-2023 00:23 109241 dmsp_18_ephemeris_20131203.txt 22-Jun-2023 00:23 109336